Tire fabric



C. ZEGLEN.

TIRE FABRIC.

APPLICATION FILED MAR. 21, I917.

Patented Mar. 30, 1920.

CASIMIR ZEGLEN, 0F CLEVELAND, OHIO.

' TIlRE FABRIC.

Specification of Letters Patent.

Patented Mar. 30, 1920.

Application filed March 8, 1917. Serial No. 153.231.

To all/whom it may concern:

Be it known that I, CASIMIR ZEGLEN, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and .State of Ohio, have invented a certain new and useful Improvement in Tire Fabrics, of which the following is afull, clear, and exact description.

This invention relates, to improvements in multi-ply woven fabric strips of. the general character which is shown in my prior Patents, No. (501,870, granted May 31, 1898, No. 876,616, granted Jan. 11-, 1908, and No. 977,357, granted Nov. 29, 1910.

The primary object of this invention is to produce a fabric stri) of such form that when it is cut on the bias into short scctions, these sections may be lapped and Se cured together to make a bias stri of indefinite length, which is of substantially the. same thickness at all places; or, in other,

words, so that the joints produced by over lapping-and joining the two overlapping edges shall be no thicker than of the strip.

' The invention consists in the fabric strip which is shown in the accompanying drawings, hereinafter described, and pointed out definitely in the appended claims.

My improved fabric is illustrated in the accompanying sheet of drawings wherein Figure 1 shows cross-sectional fr: ginentary parts of my improved fabric including the body and edge portions thereof; Fig. 2 is a plan view on a reduced scale of the fabric; Fig. 3 is a sectional view substantially along the line ti 3 of Fig. 3, looking in the direction indicated by the arrows; Fig. 4 is an enlarged. cross sectional view illustrating especially the disposition and length of the weft threads; Fig. 5 illustrates a length of fabric suitable for use in making tires, and illustrating the manner in which bias cut sections are united with their edge portions m'erlapping; and F G is an enlarged fragmentary sectional view illustrating the manher in which the edge portions of the contiguous pieces are overlapped.

Referring'to the parts by reference char acters, A represents the central body portion of the fabric; and B, B, represent respectively the two integral edge portions of said fabric. The combined thickness of the. two edge portions is equal to the thickness of the central body portion A. This result is due to the fact that in'the bodv portion the remainder the number of layers of weft threads 10 is equal to the sum of the layers of weft threads 10 in both the edge portions B and B".

The thin edge portion B is so disposed that its top surface is flush with the top surface of the central body portion of the fabric, while the thin edge portion B is so disposed that its bottom surface is flush with tnhe bottom surface of the central body por- These results are attained by having a certain number of the top layers of the weft threads 10 go back and fortlracross the fabric from the left edge 12 of the body portion to the right edge of the right edge portion designated B (see Fig. 4:), and by having the remainder of the weft threads 10 go back and forth froln the right edge 13 of the-body portion to the left edge of the left edge portion designated B.

\Varp threads 15 extend. from one edge to the other of the fabric'strip, and are interlaced with the layers of weft threads by reason of the fact that they extend in diag onal directions back and forth from the top to the bottom surface of the fabric. The warp threads 15 are divisible into groups each of which contains a plurality of threads, for example, if the body portionof the fabric is eight-ply thick, as shown in the drawings. that is to say, if it has' eight layers of weft threads running back and forth across it, there should be nine warp threads in each group in the body portion A of the fabric.

And if each of the edge portions B, B, is four-ply thick there should be five warp threads in each group of warp threads which are in these edge portions. As with the body portion so with the edge portions, the warp threads extend diagonally up and down from the iop to the bottom of the fabric and thereby are interlaced with the the edge portion-B may be superimposed F tion of rubber.

upon the edge section B, and the combined thickness of these overlapped edge portions will be equal to the thickness of the body.

These overlai ed )ortions B B ma be secured together by stitching or in any other Way desired, and the result will be a bias cut strip of inulti ply fabric which is pan ticularly useful in the manufacture of pneumatic tire casings. For this use, however, it is necessary that the threads or yarns of which the fabric is con'iposed shall be rubberized. This may be accomplished in various ways well understood in the art, as for example, it may be dipped into a solu- Or the threads of which. the fabric is woven may be rubberized before they are woven into the fabric, although to do this involves as I believe the employment of an invention which I propose to make the subject n'iatter of another application.

Having described my invention, 1 claim lfA Woven. multi-ply fabric strip comprising a longitmlinul extended body per-- tion and two longitudinal extended ca e portions of which one edge portion ha. its

upper Suinee flush with the upper surface of said body portion and the other edge poi:- tion has its bottom surface flush with the bottom surface of the said body portion said febrie strip consisting of warp threads which are interlaced with the weft threads and extend up and down from the top to the bottom of said fabric, and'e. plurality oi? layers of Weft threads with which. said Warp threads are interlaced, the upper layers of weft threads-extending from the eri equal the thickness ofthe adjacent part of the. body portion, one of said edge portions I having; its upper surface flush with the upper surrace oi the body portion, and the .other edge portion l'iaving its bottom surface flush with the bottom surface of the body portion,

3. A woven multi-ply fabrlc formed of superimposed layers oi? weft threads andwarp threads which are interlaced through. the weft threads from the top to the bottom of said tah1'i(.-,--said fabric comprising a lm'igitudinally extended body portion and live inte ral longitudinally extended edge portions 0 t equal Width and of such thickness that their combined thickness equals the thicluiese of the body portion, one edge porlion having its top surface flush with the top surface of the body portion and the other edge portion huvingjits bottom surface tlush With the bottom surface of thej said body portion.

in testimony. whereof I hereunto my signature. v

oAsrMrn meter. 

